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R7884

Sigma-Aldrich

Ribonuclease B from bovine pancreas

BioReagent, ≥50 Kunitz units/mg protein, ≥80% (SDS-PAGE)

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Synonym(s):
RNase B
CAS Number:
9001-99-4
Enzyme Commission number:
3.1.27.5 (BRENDA, IUBMB)
EC Number:
232-646-6
MDL number:
MFCD00132184
NACRES:
NA.32

biological source

bovine pancreas

Quality Level

200

product line

BioReagent

Assay

≥80% (SDS-PAGE)

form

powder

specific activity

≥50 Kunitz units/mg protein

concentration

≥60%

technique(s)

cell based assay: suitable

suitability

suitable for molecular biology

application(s)

cell analysis

foreign activity

protease ≤0.001 units/mg solid

storage temp.

−20°C

InChI

1S/C9H14N4O3/c10-2-1-8(14)13-7(9(15)16)3-6-4-11-5-12-6/h4-5,7H,1-3,10H2,(H,11,12)(H,13,14)(H,15,16)

InChI key

CQOVPNPJLQNMDC-UHFFFAOYSA-N

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Application

Ribonuclease B from bovine pancreas is used in the digestion of RNA during cell cycle platform analysis.

Biochem/physiol Actions

Native RNase BS generated by subtilisin digestion of native RNase B comprising of amino acid residues 21-124 of RNase B, is sensitive to PNGase F digestion. Intramolecular N-glycans of bovine pancreatic RNase B function like chaperone. RNase B is found to be much faster than RNase A, while RNase A is liable to aggregate during regeneration. The stimulatory effect of Asn-oligosaccharide (which corresponds to the most predominant sugar chain of RNase B) reveals that the N-glycans of RNase B facilitates the transformation of bulky intermediates into folded, compact species.

Packaging

Package size based on protein content

Preparation Note

Purified by affinity chromatography

inhibitor

Product No.
Description
Pricing

Pictograms

Health hazard
GHS08

Signal Word

Danger

Hazard Statements

H334

Precautionary Statements

P261 - P284 - P501

Hazard Classifications

Resp. Sens. 1

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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  1. Which document(s) contains shelf-life or expiration date information for a given product?

    If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.

  2. How do I get lot-specific information or a Certificate of Analysis?

    The lot specific COA document can be found by entering the lot number above under the "Documents" section.

  3. How should Ribonuclease B from bovine pancreas, Product R7884, be reconstituted?

    This product may be reconstituted directly in water at a concentration of 1 mg/mL.

  4. What is the extinction coefficient of Ribonuclease B from bovine pancreas (RNase B), Product R7884?

    The E1% for this enzyme is 8.0 when measured at 280 nm.

  5. What is the difference between RNase B, Ribonuclease B from bovine pancreas, Product R7884, and RNase A?

    The amino acid sequence for the two enzymes is the same. The difference between them is that RNase B is a glycoprotein and contains 6 mannose residues and 2 residues of N-acetylglucosamine.

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Audra A Hargett et al.
Molecules (Basel, Switzerland), 26(14) (2021-07-25)
Protein glycosylation is important in many organisms for proper protein folding, signaling, cell adhesion, protein-protein interactions, and immune responses. Thus, effectively determining the extent of glycosylation in glycoprotein therapeutics is crucial. Up to now, characterizing protein glycosylation has been carried
Véronique Blanchard et al.
Biochemistry, 47(11), 3435-3446 (2008-02-26)
In glycoanalysis protocols, N-glycans from glycoproteins are most frequently released with peptide- N (4)-( N-acetyl-beta-glucosaminyl)asparagine amidase F (PNGase F). As the enzyme is an amidase, it cleaves the NH-CO linkage between the Asn side chain and the Asn-bound GlcNAc residue.
H Yamaguchi et al.
Journal of biochemistry, 120(3), 474-477 (1996-09-01)
This paper describes a chaperone-like function of the intramolecular N-glycans of bovine pancreatic RNase B. We studied air-oxidative regeneration from reductively denatured species of RNase B and its nonglycosylated form, RNase A. RNase B was reactivated much faster than RNase
Rafał Kolenda et al.
Frontiers in microbiology, 9, 1905-1905 (2018-09-07)
Bacterial host tropism is a primary determinant of the range of host organisms they can infect. Salmonella serotypes are differentiated into host-restricted and host-adapted specialists, and host-unrestricted generalists. In order to elucidate the underlying molecular mechanisms of host specificity in
Yang Xu et al.
iScience, 25(8), 104753-104753 (2022-08-10)
N-Acetylglucosamine (GlcNAc) is an essential monosaccharide required in almost all organisms. Fluorescent labeling of the peptidoglycan (PG) on N-acetylglucosamine has been poorly explored. Here, we report on the labeling of the PG with a bioorthogonal handle on the GlcNAc. We
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